Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 27-10-2006 and time 10:44:30 (UTC) in region 3 km W Marcellina (RM)

A magnitude ML 1.5 earthquake occured in region: 3 km W Marcellina (RM), on

  • 27-10-2006 10:44:30 (UTC)
  • 27-10-2006 12:44:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.0220, 12.7730 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Marcellina RM 3 7280 7280
Guidonia Montecelio RM 4 88673 95953
Sant'Angelo Romano RM 5 5018 100971
Palombara Sabina RM 5 13269 114240
San Polo dei Cavalieri RM 6 2992 117232
Tivoli RM 7 56533 173765
Castel Madama RM 9 7399 181164
Vicovaro RM 10 4019 185183
Moricone RM 11 2650 187833
Roccagiovine RM 11 263 188096
Monteflavio RM 11 1348 189444
Mentana RM 11 22921 212365
Licenza RM 12 1011 213376
Mandela RM 13 917 214293
Fonte Nuova RM 13 32562 246855
Montelibretti RM 13 5323 252178
Montorio Romano RM 13 1984 254162
Monterotondo RM 13 40830 294992
San Gregorio da Sassola RM 14 1619 296611
Percile RM 14 255 296866
Sambuci RM 14 925 297791
Saracinesco RM 15 185 297976
Ciciliano RM 16 1336 299312
Nerola RM 16 1926 301238
Casape RM 16 744 301982
Cineto Romano RM 16 601 302583
Scandriglia RI 17 3108 305691
Gallicano nel Lazio RM 17 6334 312025
Poli RM 18 2418 314443
Anticoli Corrado RM 18 915 315358
Roviano RM 18 1351 316709
Orvinio RI 18 405 317114
Riofreddo RM 19 781 317895
Cerreto Laziale RM 19 1118 319013
Vallinfreda RM 20 283 319296
Pisoniano RM 20 770 320066

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km NE of Guidonia Montecelio (88673 inhabitants)
7 Km NW of Tivoli (56533 inhabitants)
28 Km NE of Roma (2864731 inhabitants)
37 Km N of Velletri (53303 inhabitants)
45 Km NE of Pomezia (62966 inhabitants)
49 Km N of Aprilia (73446 inhabitants)
52 Km NE of Fiumicino (78395 inhabitants)
61 Km S of Terni (111501 inhabitants)
63 Km N of Latina (125985 inhabitants)
63 Km SW of L'Aquila (69753 inhabitants)
65 Km N of Anzio (54211 inhabitants)
70 Km SE of Viterbo (67173 inhabitants)
81 Km E of Civitavecchia (52991 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		Md 2.0
ML 1.5 		2006-10-27
10:44:30		 42.022 12.773 10 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 599309
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2006-10-27 10:44:30 ± 0.74
Latitude 42.0220 ± 0.0198
Longitude 12.7730 ± 0.0508
Depth (km) 10 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 599309

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 4285
Semi-minor axis of confidence ellipse (meter) 2227
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 235
Circular confidence region, given by single value of horizontal uncertainty (meter) 4741.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 287
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.46045
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 599309
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:27:07

Md:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 599309
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:27:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GUAR.EHN. 2006-10-27T10:44:46.64 0.1 undecidable manual Sg 119 51.1155 0.336 46
IV.FIAM.HHN. 2006-10-27T10:44:43.23 0.1 undecidable manual Sg 46 39.3273 0.085 50
IV.GUAR.EHN. 2006-10-27T10:44:39.14 0.1 undecidable manual Pg 119 51.1155 -0.288 94
IV.FIAM.HHN. 2006-10-27T10:44:37.53 0.1 undecidable manual Pg 46 39.3273 -0.073 100
IV.CERT.HHZ. 2006-10-27T10:44:37.13 0.1 undecidable manual Sg 115 18.9699 -0.41 48
IV.CERT.HHZ. 2006-10-27T10:44:34.72 0.1 undecidable manual Pg 115 18.9699 0.351 98
IV.BSSO.HHE. 2006-10-27T10:44:15.61 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download